carla, another seed supplier is egmont seeds which is a commercial seed company which has just launched a home garden seed catalouge.
many of their varieties are ones which are resistant to modern diseases, or grow well in sholder seasons for that variety. they have high quality seeds (which tend to grow strong plants) you can find them at www.egmontseedsshop.co.nz.
i have also had great success with kings seeds (on line) and with mr fothergales (spelling) which i think you can get at bunnings and k mart. hope that helps.

Hi everyone, -one for the non-organic gardeners here - I have a very large amount(a couple of hundred kilos) of fertiliser in damaged bags (mainly 10kg) to give away as our garden is all organic ( I know the right people at a large dispatch so if you need some let me know - note free to give away)

Anyone who might like to join the Southern Seed Exchange, which is dedicated to preserving locally adapted varieties of heirloom vegetables - there is a seed swap on Saturday afternoon Sept 12, at the former CPIT Seven Oaks campus, Corner Hassals Lane and York St. Bring your surplus seeds, tubers and seedlings, and you might be able to swap them for something interesting. I'll be bringing some mashua tubers, lots of beans and maybe some achoecha seed.